hydraulic power control system Articles

  • Reasons to choose Trenchless Pipe Bursting Repairing Equipment

    Trenchless technology has altered the industry, revolutionizing sewer pipe repair and gaining the favor of many property owners today. No digging, no re-landscaping, no use of chemicals- the trenchless strategy is far better than the traditional approach. In the developing business sector, pipe repair companies need the most effective equipment to stay competitive. The ...


    By TRIC Tools Inc.

  • Hydraulic modeling trends in 2003

    It is traditional as a New Year dawns to review the old year and draw some conclusions. Not to be left out, we asked a number of our industry experts to reflect on key developments in their area of specialism based on their observation of the activities and issues facing users around the world during 2003. We cover in turn each of our key areas – Collection Systems, Water Supply, River Systems, ...


    By Innovyze

  • A novel technique proposed for automatic control of small hydro power plants

    A new scheme is proposed for the speed control of hydro turbines. Power can be controlled by controlling the rotary motion of the spear valve or linear motion of the sluice gate. In this paper, necessity for speed control, various function of governors, types, speed regulation of micro-hydroelectric power plants, functional block diagram of power generation and control system general models for ...


    By Inderscience Publishers

  • Hydraulic Modelling in the Middle East and North Africa

    Water is under pressure in the Middle East and North Africa, a region which houses 4% of the world’s population but possesses only 1.4% of global water resources. A naturally scarce resource at the best of times faces increasing demand from a growing population with high expectations of water quality, supply and treatment. At the same time, the price of water fails to reflect the true cost of ...


    By Innovyze

  • Hydraulic “Fracking”: Are surface water impacts an ecological concern?

    Use of high‐volume hydraulic fracturing (HVHF) in unconventional reservoirs to recover previously inaccessible oil and natural gas is rapidly expanding in North America and elsewhere. Although hydraulic fracturing has been practiced for decades, the advent of more technologically advanced horizontal drilling coupled with improved slickwater chemical formulations has allowed extensive natural ...


    By John Wiley & Sons, Ltd.

  • Real Time Control of the Sewage System in St Malo

    Saint-Malo is an extremely attractive and popular seaside resort on the north coast of Brittany in France. Covering 1,400 hectares, the local population of 50,000 increases to 120,000 in the tourist season. One of the distinguishing features of this part of the Channel coast is a very high tidal range – 14 meters from low to high, with a potential impact back through the sewer network. Combined ...


    By Innovyze

  • Hydraulic Dredging: A cost effective solution for most dredging tasks

    The vast majority of dredging jobs require removal of solids to depths of 30 feet or less. Several features enable hydraulic dredges to be the solution of choice for these applications. First, what are hydraulic dredges and how do they compare with alternative mechanical dredge types? Hydraulic dredges create slurries, combinations of solids and water, pump the slurries to the ...


    By SRS Crisafulli, Inc.

  • Optimizing Water Management in Hydraulic Fracturing for Shale Oil and Gas Production

    Centralized treatment of wastewater is emerging as a viable solution for long-term efficiency in managing water sourcing and wastewater treatment in hydraulic fracturing. The number of hydraulic fracturing (fracking) shale oil and gas wells in the United States continues to increase. Within the Bakken Shale formation alone, in North Dakota and Montana, upwards of 15,000 hydraulic fracturing ...


    By WesTech Engineering, Inc.

  • Optimizing water management in hydraulic fracturing for shale oil and gas production

    Centralized treatment of wastewater is emerging as a viable solution for long-term efficiency in managing water sourcing and wastewater treatment in hydraulic fracturing. The number of hydraulic fracturing (fracking) shale oil and gas wells in the United States continues to increase. Within the Bakken Shale formation alone, in North Dakota and Montana, upwards of 15,000 hydraulic fracturing ...


    By WesTech Engineering, Inc.

  • Clean power in water supply systems as a sustainable solution: from planning to practical implementation

    Energy efficiency and renewable energy sources have drawn a greater attention by EU, in particular for climate change policies as it can substantially cut down CO2 emissions to meet EU environmental obligations. It is well established that in drinking pipe systems Pressure Reducing Valves (PRV) are used as a mean for excess energy dissipation for the purpose of pressure control. This type of ...


    By IWA Publishing

  • Crisafulli submersible pumps and power units-case study

    In June, 1997, Mr. Quinn of EPCO, the customer's designated agent, inspected the systems at Crisafulli's manufacturing plant, and these made in Montana pumping systems were tested and shipped to Siberia. SRS Crisafulli, Inc., founded in 1966, is one of a few select manufacturers of specialized, engineered pumping and dredging systems in the United States. From its beginning, SRS Crisafulli has ...


    By SRS Crisafulli, Inc.

  • Testing and developing energy harvester systems for operation of energy-self-sufficient measurement and control units in drinking water supply

    In recent years, wireless measurement and control units have become more popular for monitoring water distribution systems in the drinking water supply. Electric power supply for a higher number of devices through fixed connections to the public electrical grid is technically complex and requires large investments. Powering monitoring devices, which are installed in areas where electrical ...


    By IWA Publishing

  • Case Study - 6MW Non-Condensing Power Plant

    Lihir Island, Papua New Guinea – 2003 First Geothermal Power Station in PNG: Press Release, April 16, 2003 Lihir Gold Limited “Gold company Lihir Gold Limited is turning its vast geothermal resource into an opportunity. In April, the company started commissioning a 6MW geothermal power station, the first in Papua New Guinea to use natural geothermal ...

  • IWLive provides advanced forecasting and scenario evaluation to the water distribution system control room

    As the powerful advantages of the modeling of water distribution systems become increasingly more apparent, MWH Soft’s IWLive makes those benefits accessible to control room staff leading to greater efficiency, cost savings and an improved service for customers. Water supply operators are under a duty to provide a clean supply of water, of sufficient quantity and pressure to satisfy a range ...


    By Innovyze

  • Effective Temperature Control for Cement Kiln Off-Gases

    INTRODUCTIONEffective off-gas temperature control without unwanted side effects can be achieved in many cement plants with state-of-the-art evaporative spray technology. Gas temperatures have elevated in recent years from as low as 180°C to over 370°C. This is coincident with a higher proportion of 'dry' operation kilns. Evaporative cooling water sprays in conditioning towers, ducts or at the ...


  • Controlling scale deposits in the pulp & paper industry

    The pulp and paper industry is one of the heaviest users of water within the North American industrial economy, requiring on average 54 cubic meters of water per metric ton of finished product.  As water is used in nearly every part of the manufacturing process, accumulation of scale is a phenomenon that can occur in all pulp and paper making processes. This occurs even with the purest water ...

  • GE Leakwise Application Notes: Oil Detection in Hydro-Electric Power Plants

    Leakwise* Oil Detection in Water Collection Sump Under Turbines Water carries oil leakage from turbine bearings and other leaking sources into a large sump, which is built under the turbines. In most plants, pumps installed at the bottom of the sump discharge the water directly to the river.  A Leakwise lD-221 Floating Oil Detector is installed in a perforated 6” stilling well. The ...


    By GE Analytical Instruments

  • ENEL launches a new LWT automated PLC controlled dredge in Guatemala

    Enel Latin America asked Liquid Waste Technology, LLC to design a LWT Pit Hog dredge equipped to excavate the main pond’s sediment from the Santa Maria River automatically. Enel Latin America needed a solution for removal of sediment accumulating in the power generation water supply at its Greenfield El Canada Power Plant in western Guatemala at Zunil. Enel Latin America asked Liquid Waste ...

  • Solving waste oil management and removal problems in power generating plants

    If your plant is like most, it is doing a good job of preventing oily water waste and waste oils from escaping into the environment. But at what cost? As labor resources dwindle, operating and maintaining drainage systems, oil separators, and sometimes inadequate oil removal equipment is expensive. Paying higher than needed costs for waste oil disposal, filtration and water treatment due to these ...


    By Oil Skimmers, Inc.

  • Top 10 Reasons to Choose a Diaphragm Actuated Control Valve

    Every water system typically consists of piping networks that distribute water from a source or storage reservoir to the end users. This frequently requires miles of piping mains along with pumps systems and controls that all have to be monitored and controlled somehow. Whether this control is to regulate pressure, a level or a flow, this usually will require some form of a ...


    By Singer Valve Inc.

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